Spectroscopy on the efficiency in GaInN LEDs and solar cells
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Authors
Zhao, Liang
Issue Date
2013-12
Type
Electronic thesis
Thesis
Thesis
Language
ENG
Keywords
Physics
Alternative Title
Abstract
In an exploration of such GaInN/GaN MQW junctions for their suitability in high concentration solar cells, we test our structures to solar concentrations up to 150 and temperatures up to 400 °C. Under AM1.5G illumination, an open circuit voltage as high as 2.1 V is found and an IQE as high as 64.2% is obtained. We find these cells to work fine up to the maximum temperature applied while showing continuous increase of the specific output power of 0.46 mW/cm2 at 25 ºC to 0.59 mW/cm2 at 250 ºC. Devices based on GaInN/GaN heterostructures therefore should be ideal for the development of top cells in multijunction solar cell arrangements.
Description
December 2013
School of Science
School of Science
Full Citation
Publisher
Rensselaer Polytechnic Institute, Troy, NY